Tectonics of the Himalaya


Book Description

The Himalayan mountain belt, which developed during the India–Asia collision starting about 55 Ma ago, is a dramatically active orogen and it is regarded as the classic collisional orogen. It is characterized by an impressively continuous 2500 km of tectonic units, thrusts and normal faults, as well as large volumes of high-grade metamorphic rocks and granites exposed at the surface. This constitutes an invaluable field laboratory, where amazing crustal sections can be observed directly in very deep gorges. It is possible to unravel the tectonic and metamorphic evolution of litho-units, to observe the mechanisms of exhumation of deep-seated rocks and the propagation of the deformation. Himalayan tectonics has been the target of many studies from numerous international researchers over the years. In the last 15 years there has been an explosion of data and theories from both geological and geophysical perspectives. This book presents the results of integrated multidisciplinary studies, including geology, petrology, magmatism, geochemistry, geochronology and geophysics, of the structures and processes affecting the continental lithosphere. These processes and their spatial and temporal evolution have major consequences on the geometry and kinematics of the India–Eurasia collision zone.




Crustal Architecture and Evolution of the Himalaya-Karakoram-Tibet Orogen


Book Description

This volume comprises 17 contributions that address the architecture and geodynamic evolution of the Himalaya–Karakoram–Tibet (HKT) system, covering wide aspects, from the active seismicity of the present day to the remnants of the Proterozoic orogen. The articles investigate the HKT system at different scales, blending field research with laboratory studies. The role of various lithospheric components and their inheritance in the geodynamic and magmatic evolution of the HKT system through time, and their links to global geological events, are studied in the field. The laboratory research focuses on the (sub-)micrometre scale, detailing micro-structural geology, crystal chemistry, geochronology, and the study of circulating fluids, their preservation (trapped in fluid inclusions) and their evolution, distribution, migration and interaction with the solid host. An orogen over 2000 km long can be understood only if the processes at the nanometre and micrometre scales are taken into account. The contributions in this volume successfully combine these scales to enhance our understanding of the HKT system.




Geo-Resources


Book Description

The book will be an everlasting and invaluable reference for, academia, industry and planners specialized in georesouce and for those who need updated information and current research in the field. The book will also be equally useful for advance level students and research scholars throughout the world.




Arunachal Pradesh


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Himalayan Neotectonics and Channel Evolution


Book Description

This book focuses on neotectonic movements and river channel evolution of the Indian subcontinent, with special reference to the Himalayan Neotectonics. Neotectonic movements have played an important role in channel evolution in tectonically active zones especially for the mountain chains, foredeeps and active deltas. The book addresses the issues of the channel evolution in neotectonically active domains of India. It aims at readers of India as well as abroad, interested in earth sciences, geomorphology, tectonics, physical geography and river forms and processes of India.




Himalayan Geology


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MANAGING NATURAL RESOURCES


Book Description

Natural resource management and sustainable development has, of late, assumed great importance, especially because of ecological crisis and environmental dangers which are looming large. Today the issues related to natural resource exploitation, consequences, their conservation, preservation and management leading to sustainable development have become the major thrust areas of teaching and research. Also, sustainability of natural resources, especially water and land resources, and their efficient use is one of the core programmes of Government of India’s Twelfth Five Year Plan (2012–2017) for strategic development; this objective can only be achieved if the resources are used judiciously. Although land and water resources—the focus of the present book—are vital for human survival and development, unfortunately both are under threat and are increasing strain worldwide. These resources have wide and significantly varying implications in rural and urban settlements, especially in India, where population has been continuously growing and, therefore, the demand of land and water is intensifying. This has necessitated urgent need for reviewing the availability of land and water resources and their conservation. Besides dealing with the theoretical aspects, this compendium presents case studies on natural resources as well, which reveal ground realities at micro and meso levels too. Pedagogical features like maps, diagrams, satellite imageries and latest database of the primary and secondary nature distinguish this book from other works on the subject. The book will be of immense use to postgraduate students and research scholars of geography and related disciplines such as rural–urban studies and environmental science. The thematic approach of the book provides reasonably good contents for cogitation to researchers. Policy makers, planners and academicians may also be benefitted while framing futuristic norms which may lead to sustainable development—the ultimate goal. AUDIENCE• Postgraduate students and Research Scholars of Geography.• Policy makers, Planners and Academicians




Geography In India: Selected Themes


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